In equalizing draft in  horse-powers



UNITED 'STATES .IA-MES WILKINSQN, orrnornnrsrown, ILLINOIS.

`vIMPaoVisit/telnr |N EQUALIZING Daar-r IN sones-POWERS.-

bpeciation' forming part ot Letters Patent No. 29,5 dated August V1l, 1863;

To all whom it may concern:

icaiion, said drawing bein ga plan or top view of my invention.

- This invention, designed tobe applied to that class of horse-powers which are provided with sweeps, to which the horses are attached.

The invention consists in the employment or useof supplemental sweeps, which are attachedby pivots to the "driving-shaft, of the device and have the whifiietxees attached to them, and are also connecte/d with each other and with the sweeps proper in such a manner that the draft of the several horses will be equaiized, as hereinafter fully shown anddescribed.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it. v

A represents a center piece or hub, which is attached" to the driving-shaft of the horsepower, and B represents four sweeps, the inner parts of which are permanently attached t0 the hub. v

f O'represents four supplemental sweeps, theY inner ends of which are attached by pivots or bolts,- a to the huh A and. by the sides of the sweeps B. The 'supplemental sweeps Gare alritle lon gerthan the sweeps B, and they have Veach'a whifiletree, D, attached to their inner ends.

B represents cords or chains, which are attached one to each supplemental sweep G. These cords or chains pass around pulleys Z, which are Iittedinthe outer parts of the sweeps B, and are'attached at their inner ends jo rin gse, which are all connected by rods d,

as plainly shown in the drawing. By this ar.-

rangement it willV be seen that all thesupplement-al sweeps G are connected together, and in case oi' any one supplemental sweep, U, bein g moved forward or outward frornthe sweep B behindgitall the others wllbe drawn backward toward their sweeps, B. Hence it will be seen that when the horses are attached to the several sweeps G, the draft will be equalized, each animal being made to perform his share ot the work,'and a uniform motion will-beeobtained, as one animal, if more ainhi-` tions thananother, cannot'exert his powerr wholly upon themachine, butalso upon the y supplemental sweeps C.,to which the Vother horses are attached,and the extra power is applied to or made to act inv restraining or vdrawing back the other animals. lIhuis it will be seen that the' draftwill be equalizedand each animal will he made to pull equally.

Having thus described Iny invention, what- I claim as new, and desire'to Secure by Letters Patent, 's i The supplemental sweeps C, sweeps proper, B, cords or chains E, and rods nl, combined and arranged to operate in the manner as and ,for the purpose herein set forth.

J A MES WILKINSON. 

